You cannot run Yuzu without firmware. But you cannot legally download that firmware from a public website or GitHub repository without dumping it from a console you own.
firmware/ 01.manifest 02.manifest 03.manifest ... (hundreds of NCA files) yuzu emulator firmware download github
To download the Yuzu emulator firmware from GitHub, follow these steps: You cannot run Yuzu without firmware
Plug the SD card into your computer and copy the extracted files over to your emulator's directory. Sudachi) are you currently setting up?
Yuzu is an open-source emulator for the Nintendo Switch console. It allows you to play Switch games on your PC.
Which (e.g., Ryujinx, Suyu, Sudachi) are you currently setting up?